Is possible to affirm that FFVIII have the most technologically advanced world of the series?

Final Fantasy VIII's "planet" has already developed the technology to be able to travel to Space, which is obviously a very big leap. However, Final Fantasy XIII has seen more of a technological advancement. The leap of space-travel was not made simply because it is not relevant.

By architecture, technology and society in and of itself, "Cocoon" is the most advanced planet in the entire series.

^ Yes, Cocoon had full availability of resources and protection that allowed it to develop into a highly advanced and capitalist world.

Other than that, you could always consider the "Dream Zanarkand", but alas the storylines throughout X and X-2 never truly delve very deep into that aspect and thus never show you where the limits of Zanarkand's technological advancements were prior to Sin's advent.

I hope you found that informative~!

RebornAleph

I went ahead and cut&copied this one down here - do me a favor and please try to keep things organized, people. If you have something to comment about a certain part of someone's post, do like the poster did between my post over there, use the "^^" sign, and possibly put it in bold to differentiate.